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DSP Code Sharing > Frequency response of window functions for FIR Filter
Frequency response of window functions for FIR Filter
Language: Scilab
Processor: Not Relevant
Submitted by Senthilkumar R on Mar 21 2011
Licensed under a Creative Commons Attribution 3.0 Unported License
Frequency response of window functions for FIR Filter
This Program is used to find and plot the Frequency response of
(1) Hanning window (2)Hamming window for M = 11
//Program to find and plot the frequency response of
//(1) Hanning window (2)Hamming window for M = 11
clear all;
close;
clc
M = 11;
for n = 1:M
h_hann_11(n) = 0.5-0.5*cos(2*%pi*(n-1)/(M-1));
h_hamm_11(n) = 0.54-0.46*cos(2*%pi*(n-1)/(M-1));
end
subplot(2,1,1)
[h_hann_11_M,fr]=frmag(h_hann_11,512);
h_hann_11_M = 20*log10(h_hann_11_M./max(h_hann_11_M));
plot2d(fr,h_hann_11_M,2);
title('Frequency Response 0f Hanning window Filter length M =11')
subplot(2,1,2)
[h_hamm_11_M,fr]=frmag(h_hamm_11,512);
h_hamm_11_M = 20*log10(h_hamm_11_M./max(h_hamm_11_M));
plot2d(fr,h_hamm_11_M,2);
title('Frequency Response of Hamming window Filter length M =11')
//(1) Hanning window (2)Hamming window for M = 11
clear all;
close;
clc
M = 11;
for n = 1:M
h_hann_11(n) = 0.5-0.5*cos(2*%pi*(n-1)/(M-1));
h_hamm_11(n) = 0.54-0.46*cos(2*%pi*(n-1)/(M-1));
end
subplot(2,1,1)
[h_hann_11_M,fr]=frmag(h_hann_11,512);
h_hann_11_M = 20*log10(h_hann_11_M./max(h_hann_11_M));
plot2d(fr,h_hann_11_M,2);
title('Frequency Response 0f Hanning window Filter length M =11')
subplot(2,1,2)
[h_hamm_11_M,fr]=frmag(h_hamm_11,512);
h_hamm_11_M = 20*log10(h_hamm_11_M./max(h_hamm_11_M));
plot2d(fr,h_hamm_11_M,2);
title('Frequency Response of Hamming window Filter length M =11')
posted by Senthilkumar R Comments
rupeshsushir wrote:
11/16/2011
Sir I required MATLAB code for frequency sampling method for FIR filter. If so then please email me. My mail-id is rupeshsushir@gmail.com.
Thank You.
Arun Prakash wrote:
2/22/2012
Sir i am doing final year project on filter design analysis and frequency domain for server scheduling and optimization. so please help me to design a fir filter in scilab.If so then please email me. My mail-id is arunsaravanan001@gmail.com
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